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Author Question: One use of a regression equation is to increase the accuracy of predicting Y scores. What determines ... (Read 95 times)

ss2343

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on: Jun 20, 2018
One use of a regression equation is to increase the accuracy of predicting Y scores. What determines the proportion of the variability in the Y scores that is predicted by the regression equation?
 
  A) r2
  B) 1 - r2
  C) r
  D) 1 - r

Question 2

The critical boundaries for a hypothesis test are z = +1.96 and 1.96. If the z-score for the sample data is z = 1.90, then what is the correct statistical decision?
 
  A) Fail to reject H1
  B) Fail to reject H0
  C) Reject H1
  D) Reject H0


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leeeep

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Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

B


ss2343

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  • Posts: 548
Reply 2 on: Jun 20, 2018
Excellent

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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